Parasol Sunscreen Effect
Parasol Sunscreen effect
What is the best sunscreen sunscreen effect? In the hot sun, the umbrella is the beauty of the travel must be a single product, not only concave shape, but also sunscreen. But this filled with colorful umbrella really sunscreen Which umbrella sunscreen index is the highest? Net transmission with a hundred yuan to distinguish the anti-sun, is scientific? Recently, the reporter in an empty place to do a small experiment, the next day with the experimental results came to the national textile and garment product quality supervision and inspection center confirmation.
Umbrellas were not with sunscreen material ordinary umbrella (price 20 yuan), silver plastic coated sun umbrella (price 60 yuan) and vinyl sun umbrella (price 100 yuan).
Reporters were standing under the umbrella feel, black umbrella completely opaque, umbrella under a cool. Followed by silver plastic umbrella, or a weak light, the worst is the ordinary umbrella, did not stand for a while, the skin has a baked feeling. But also according to netizens Weapon: holding 100 yuan, if the umbrella can not see the watermark, it can protect against ultraviolet rays, if you can clearly see the watermark, it can not prevent ultraviolet light. Reporters such as law operation, found under the ordinary umbrella, the watermark is particularly clear, silver glue and vinyl completely unable to see. Demonstration umbrella posture
【Tips】 umbrella posture have to pay attention
1. In the case of a sunscreen coating, the darker the sunscreen umbrella, the better the performance of its anti-ultraviolet, in order to achieve good sunscreen effect, it is best for those who love the color of the umbrella.
2. Sun umbrella is best not to be used as an umbrella, rain umbrella sunscreen coating has a corrosive effect, affecting the umbrella sunscreen performance.
3. Upright and shoulder two umbrella posture is the habit of people living in the way of smoking, but the shoulder-like sunscreen effect is weaker than the vertical. Because when people take a vertical position of the umbrella, the umbrella cover a wider range, in addition to blocking the direct sunlight, the surrounding environment reflects the light to the face less. Experts do the test on the instrument
[Expert testing] black plastic umbrella wins silver plastic umbrella followed
What is the truth? The second day, the reporter with the experimental results came to the national textile and garment products Quality Supervision and Inspection Center (Hubei) confirmation.
Engineers smiled and told reporters, "100 yuan of paper money test can only be a small experience of life, there is no scientific basis. Sun umbrella the most important reference value is UPF value (UV protection factor value) and UVA value (long wave UV).
The reporter put the experiment to the three umbrellas on the temperature of 20 ± 2 ℃, humidity of 65 ± 2% of the environment, humidity 8 hours. Then from the umbrella were cut four 50mm × 50mm size of the sample, with the instrument has four samples tested, the results of UPF and UVA transmittance of the average. The average Umbrella UPF is 13.71, UVA is 17.62%; silver glue umbrella UPF is 305.15, UVA is 1.85%; black glue umbrella is greater than 2000, UVA is less than 0.05%.